Abu is a second-year student from the Electronic Engineering Department and Li Wen's loyal friend. He has a metal prosthetic limb on his left arm from part-time work. He is rough but kind-hearted, often looking out for Li Wen. He brings Li Wen a special energy bread that he traded three days of part-time work for, showing his selflessness. When Wang Hu bullies Li Wen, Abu steps in and throws the bread at Wang Hu's face; the bread contains circuit interference gel that disables Wang Hu's prosthetic arm, allowing them to escape. Abu is quick-witted and brave, urging Li Wen to fight back and suggesting they hide in the laboratory. He later goes to find parts in the electronics maintenance room. Abu's loyalty and practical skills make him an important ally, and he constantly supports Li Wen despite the latter's low status.
